cheerhappy 发表于 2011-3-26 11:27
3# jzhyue


我又验证了下，不是因为我刚刚说的那个原因，呵呵……
下面是错误的解释
error . . . . . . . . . . . . . . . . . . . . . . . .  Return code 111
        __________ not found;
        no variables defined;
        The variable does not exist.  You may have mistyped the
        variable's name.
        variables out of order;
        You specified a varlist containing varname1-varname2, yet
        varname1 occurs after varname2.  Reverse the order of the
        variables if you did not make some other typographical error.
        Remember, varname1-varname2 is taken by Stata to mean varname1,
        varname2, and all the variables in dataset order in between.
        Type describe to see the order of the variables in your dataset.
        __________ not found in using data;
        You specified a varlist with merge, yet the variables on which
        you wish to merge are not found in the using dataset, so the
        merge is not possible.
        __________ ambiguous abbreviation;
        You typed an ambiguous abbreviation for a variable in your data.
        The abbreviation could refer to more than one variable.  Use a
        nonambiguous abbreviation or, if you intend all the variables
        implied by the ambiguous abbreviation, append a `*' to the end
        of the abbreviation.
(end of search)



我觉得x在这里应当是字符串中的一个字符，所以这样直接定义为x会不会有误呀？期待您的指点！